Hint Inc., San Francisco, CA, has added four new flavors to its Hint Water line: Hibiscus Vanilla, Watermelon, Honeydew Hibiscus and Blackberry. These flavors join nine others, including Mango-Grapefruit, Pomegranate-Tangerine, Lime, Raspberry-Lime, Peppermint, Pear, Tropical Punch, Cucumber and Strawberry Kiwi. Hint Waters are all-natural and sugar-free.